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Ghira Ioan; Ghile Paul: The herpetofauna of the river Someş/Szamos basin. In: The Somes/Szamos river valley : a study of the geography, hydrobiology and ecology of the river system and its environment 3. pp. 311-317. (1999)
Ghira Ioan: Herpetofauna of Crişul Repede/Sebes Körös and Barcău/Berettyó river basins. In: The Cris/Körös rivers' valleys : a study of the geography, hydrobiology and ecology of the river system and its environment 2. pp. 353-360. (1997)
Ghira Ioan; Újvárosi Lujza; Mara Gyöngyvér: Tropical spectrum of Rana ridibunda and its importance in trophical web in the Crişul Repede/Sebes-Körös river ecosystems. In: The Cris/Körös rivers' valleys : a study of the geography, hydrobiology and ecology of the river system and its environment 2. pp. 361-366. (1997)
